Periodic Table Malaysia
Bonifacia Cramm
Rithika Vallinacha Ramanathan, nine, has earned a spot in the Malaysia Book of Records (MBR) for the Fastest Time To Arrange Periodic Table By A Child, clocking an impressive three minutes and 31 seconds. The young girl from Bukit Baru, Melaka, completed the task on July 18 at MBR's office in Brickfields, Kuala Lumpur.
"It started with a puzzle on the periodic table that I was introduced to by a friend. I was interested to know more about the elements. A few days later, my parents bought a few books on the periodic table. From then on, my interest began," said the Year Three student at a private school in Melaka.
Within just four months, armed with sheer determination and an insatiable curiosity, she embarked on a journey to remember the entire periodic table. Rithika managed to memorise the table despite not having any knowledge in chemistry.
"She has a good memory and recall ability, like a photographic memory. The memorising did not burden her much compared to the orderly arrangement of the elements."Rithika's progress from a starting time of 12 minutes to the record-breaking three minutes and 31 seconds is a testament to her dedication and perseverance.
"My husband and I helped her create a story for the arrangement of elements and divided the periodic table into segments for her to practise little by little. Within two months, she achieved a timing below the five-minute benchmark."
Rithika (centre) pictured with her parents, Dr Ramanathan Ravi and Chintamani Narayanan, and her brother, Ridhesh Thaneermalaiyan Ramanathan.Daily practice played a crucial role in honing her skills, added Chintamani, who works as a tutor.
"She practised thrice a day, dedicating about an hour in total each day. She was very focused. She wanted to quit in the middle when it was very taxing and exhausting to time below five minutes, but the next day, she decided to continue with fresh waves of diligence and discipline," said the mother of two.
Atomic radius, non-bonded
Half of the distance between two unbonded atoms of the same element when the electrostatic forces are balanced. These values were determined using several different methods.
An integrated supply risk index from 1 (very low risk) to 10 (very high risk). This is calculated by combining the scores for crustal abundance, reserve distribution, production concentration, substitutability, recycling rate and political stability scores.
The availability of suitable substitutes for a given commodity.
High = substitution not possible or very difficult.
Medium = substitution is possible but there may be an economic and/or performance impact
Low = substitution is possible with little or no economic and/or performance impact
Images Murray Robertson 1999-2011
Text The Royal Society of Chemistry 1999-2011
Welcome to "A Visual Interpretation of The Table of Elements", the most striking version of the periodic table on the web. This Site has been carefully prepared for your visit, and we ask you to honour and agree to the following terms and conditions when using this Site.
The RSC maintains this Site for your information, education, communication, and personal entertainment. You may browse, download or print out one copy of the material displayed on the Site for your personal, non-commercial, non-public use, but you must retain all copyright and other proprietary notices contained on the materials. You may not further copy, alter, distribute or otherwise use any of the materials from this Site without the advance, written consent of the RSC. The images may not be posted on any website, shared in any disc library, image storage mechanism, network system or similar arrangement. Pornographic, defamatory, libellous, scandalous, fraudulent, immoral, infringing or otherwise unlawful use of the Images is, of course, prohibited.
Commercial use of the Images will be charged at a rate based on the particular use, prices on application. In such cases we would ask you to sign a Visual Elements licence agreement, tailored to the specific use you propose.
The RSC makes no representations whatsoever about the suitability of the information contained in the documents and related graphics published on this Site for any purpose. All such documents and related graphics are provided "as is" without any representation or endorsement made and warranty of any kind, whether expressed or implied, including but not limited to the implied warranties of fitness for a particular purpose, non-infringement, compatibility, security and accuracy.
In no event shall the RSC be liable for any damages including, without limitation, indirect or consequential damages, or any damages whatsoever arising from use or loss of use, data or profits, whether in action of contract, negligence or other tortious action, arising out of or in connection with the use of the material available from this Site. Nor shall the RSC be in any event liable for any damage to your computer equipment or software which may occur on account of your access to or use of the Site, or your downloading of materials, data, text, software, or images from the Site, whether caused by a virus, bug or otherwise.
Seri Iskandar, 20 Feb - Dr Magaret Sivapragasam, a postdoctoral research scientist at UTP Centre of Research Ionic Liquids has been named to the prestigious Periodic Table of Younger Chemists by the International Union of Pure and Applied Chemistry (IUPAC). She is the sole and first ever recipient from Malaysia selected by IUPAC to represent ytterbium (Yb), the 70th chemical element on the periodic table.
The Periodic Table of Younger Chemists was created in celebration of the 100th anniversary of IUPAC and the International Day of the Periodic Table. Each of the chosen elements from the periodic table will be represented by one of 118 exceptional young chemists from around the world. The resulting periodic table will emphasise the career diversity, creativity and the dedication of young chemists, who represent IUPAC's mission and core values.
"It is really humbling to receive the award and a great honour to be part of the periodic table of younger chemists. I am thrilled to put Malaysia and UTP on such a distinguished global platform," said Magaret.
"We need more women in science roles to make scientific innovations and more importantly, address global challenges. Institution like UTP creates a nurturing and inclusive environment to ensure that women have the opportunity to develop their scientific interests and abilities as well as research capabilities," she said.
Magaret's research focuses on employing ionic liquids as a dye removal system and oil dispersant while studying their ecotoxicity profiles. One of her projects includes the removal of dye from industrial wastewater from the "batik" dyeing industry in Malaysia where she won several awards which included Stage 2 of the Shell Ideas 360 Innovators Challenge and the Honorable Mention by Yale University Green Chemistry Challenge. She aims to curb the issue of pollution in small villages which is an issue in Malaysia.
In 2017, she was awarded with the prestigious Science Finder CAS Future Leader by the American Chemical Society. She was recently featured on "Science and She" a social media campaign initiated by the International Service for the Acquisition of Agri-biotech Application (ISAAA) and its network of Biotechnology Information Centres worldwide.
Being an active ACS Malaysian Chapter member, she often gives talks to encourage the usage of social media to disseminate scientific information. In her university, she organises bi-monthly science communication sessions titled "Let's talk over tea" to provide a platform for young scientist to speak their science. Being an advocate for female scientists in Malaysia, she works towards abolishing stereotypes towards female scientist and started a trend on Twitter #scientistscanwearmakeup.
The rare-earth elements (REE), also called the rare-earth metals or rare earths or, in context, rare-earth oxides, and sometimes the lanthanides (although scandium and yttrium, which do not belong to this series, are usually included as rare earths),[1] are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare earths have diverse applications in electrical and electronic components, lasers, glass, magnetic materials, and industrial processes.
Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties, but have different electrical and magnetic properties.[2][3] The term 'rare-earth' is a misnomer because they are not actually scarce, although historically it took a long time to isolate these elements.[4][5]
These metals tarnish slowly in air at room temperature and react slowly with cold water to form hydroxides, liberating hydrogen. They react with steam to form oxides and ignite spontaneously at a temperature of 400 C (752 F). These elements and their compounds have no biological function other than in several specialized enzymes, such as in lanthanide-dependent methanol dehydrogenases in bacteria.[6] The water-soluble compounds are mildly to moderately toxic, but the insoluble ones are not.[7] All isotopes of promethium are radioactive, and it does not occur naturally in the earth's crust, except for a trace amount generated by spontaneous fission of uranium-238. They are often found in minerals with thorium, and less commonly uranium.
Though rare-earth elements are technically relatively plentiful in the entire Earth's crust (cerium being the 25th-most-abundant element at 68 parts per million, more abundant than copper), in practice this is spread thin across trace impurities, so to obtain rare earths at usable purity requires processing enormous amounts of raw ore at great expense, thus the name "rare" earths.
c80f0f1006